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From: Serge Semin <Sergey.Semin@baikalelectronics.ru>
To: Felipe Balbi <balbi@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Andy Gross <agross@kernel.org>
Cc: <linux-usb@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH v6 09/10] usb: dwc3: qcom: Detect DWC3 DT-nodes with "usb"-prefixed names
Date: Wed, 10 Feb 2021 20:28:49 +0300
Message-ID: <20210210172850.20849-10-Sergey.Semin@baikalelectronics.ru> (raw)
In-Reply-To: <20210210172850.20849-1-Sergey.Semin@baikalelectronics.ru>

In accordance with the USB HCD/DRD schema all the USB controllers are
supposed to have DT-nodes named with prefix "^usb(@.*)?".  Since the
existing DT-nodes will be renamed in a subsequent patch let's first make
sure the DWC3 Qualcomm driver supports them and second falls back to the
deprecated naming so not to fail on the legacy DTS-files passed to the
newer kernels.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 drivers/usb/dwc3/dwc3-qcom.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index c703d552bbcf..49ad8d507d37 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -630,7 +630,8 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
 	struct device		*dev = &pdev->dev;
 	int			ret;
 
-	dwc3_np = of_get_child_by_name(np, "dwc3");
+	dwc3_np = of_get_child_by_name(np, "usb") ?:
+		  of_get_child_by_name(np, "dwc3");
 	if (!dwc3_np) {
 		dev_err(dev, "failed to find dwc3 core child\n");
 		return -ENODEV;
-- 
2.30.0


  parent reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-10 17:28 [PATCH RESEND v6 00/10] dt-bindings: usb: Harmonize xHCI/EHCI/OHCI/DWC3 nodes name Serge Semin
2021-02-10 17:28 ` [PATCH v6 01/10] arm: dts: ls1021a: Harmonize DWC USB3 DT " Serge Semin
2021-02-10 17:28 ` [PATCH v6 02/10] arm: dts: keystone: Correct DWC USB3 compatible string Serge Semin
2021-02-10 17:28 ` [PATCH v6 03/10] arc: dts: Harmonize EHCI/OHCI DT nodes name Serge Semin
2021-02-10 17:28 ` [PATCH v6 04/10] arm: dts: lpc18xx: " Serge Semin
2021-02-10 17:28 ` [PATCH v6 05/10] powerpc: dts: akebono: " Serge Semin
2021-02-10 17:28 ` [PATCH v6 06/10] arm: dts: keystone: Harmonize DWC USB3 " Serge Semin
2021-02-10 17:28 ` [PATCH v6 07/10] arm: dts: stih407-family: " Serge Semin
2021-02-10 17:28 ` [PATCH v6 08/10] arm64: dts: apm: " Serge Semin
2021-02-10 17:28 ` Serge Semin [this message]
2021-02-10 18:17   ` [PATCH v6 09/10] usb: dwc3: qcom: Detect DWC3 DT-nodes with "usb"-prefixed names Rob Herring
2021-02-10 18:40     ` Serge Semin
2021-02-10 18:56       ` Bjorn Andersson
2021-02-10 19:33         ` Serge Semin
2021-02-12 17:33           ` Serge Semin
2021-02-12 18:01             ` Bjorn Andersson
2021-02-12 17:49           ` Bjorn Andersson
2021-02-12 19:51             ` Serge Semin
2021-02-10 18:59       ` Rob Herring
2021-02-10 17:28 ` [PATCH v6 10/10] arm64: dts: qcom: Harmonize DWC USB3 DT nodes name Serge Semin
2021-02-10 18:21 ` [PATCH RESEND v6 00/10] dt-bindings: usb: Harmonize xHCI/EHCI/OHCI/DWC3 " Florian Fainelli
2021-02-10 18:43   ` Serge Semin

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